Spraying apparatus



' F. C. FANTZ .sPRAYms APPARATUS 2 Sheets-Sheet 1 Original Filed NOV. 24, 1920 ff IMF :1:

c. FANTZ snmnna APPARATUS ori inal ild Nov. 24, 1920 2 Sheets-Sheet as paint, glue,

Patented Aug. 24, 1926.-.

UNITED STATES PATENTL OFFICE;

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.Original application filed mivember 1920, Serial No. 426,215. Divided and thin application mes January 18, 1323.

i This invention relates to means for apply ing fluid coatings.

Diflicult plying certain liquids that are characterized by having a tendency to dry or clog up. For example,- in the case of such liquids and the like, there is a tendency for the paint to partially dry about the discharge ports of the apparatus particularly during the periods when the a paratus is .presence 01? solid materials or flaky -mat-' ters in liquids also contrlbutes to the clogply not in actual operation.

ging up of the apparatus, since when the flow of li uid ismore or less sluggish or is stopped t ese materials readily collect in the discharge ports. Inmany cases the ap. or spraying of the liquid is carried onunder conditions-in which moreor less a dirt or other extraneous matter is present ing a stoppage of the apparatus.

paintin a0 i of achamber to which t which collects in the discharge ports causparticularly true 1n the case of; applying coatin to be coated, which is rubbed ofi 'durin the or coating operation and co ects in the. d scharge openings causing a clogging of the mechanism. v

'-My invention obviates these difiiculties byproviding. apparatus in which it is practically impossible for' the discharge ports to become clogged regardless of how viscous the/liquid used may be .and even though the liquid have a great tendency to dry up or clog, and moreover under conditions in which considerable dirt' or other extraneous. matter may be present.

The invention contem fiates the provision eliquid to be-applied is admitted. One or more of the walls of the chamber are movable and arranged with contiguous edges which when moved apart form aslot or port for the discharge of-fluid. The walls arepreferably provided with indentationsor recesses along the contiguous edges 'so'that when the walls are closed the indentations form idischarge.

ports, the arrangement being such that the greatest pressure of the fluid may be exerted when the chamber is closed the passage of has been experienced in provid-- ing suitab e apparatus for spraying or ap-' This is to barrels, casks, and the like; par

ticular y used receptacles in which more or less dirt may be present on the surfaces is arranged to bejmovable;

Serial No; 612,832;

the fluid through the ports under pressure operating to keep same free from obstrucbarrels and the like it is described herein asthus applied. For the purpose of this detailed description of the invention reference ishad to the accompanying drawings whei'e- .Figure 1 is a plan view showing the apparatus as applied in paint barrels.

Figure 2 is a sectional elevation taken on the line 2-2 of Figure 1.

Figurev3 is an enlarged longitudinal ole .70

vation partially in section of the spraying a p aratus.

igure 4 is a cross'section taken on the line 4-4 of- Figure 3.

. In the example of. the invention illustrated w in Figures 3 and 4' a chamber 'or'resel'voir 10 is shown whichincludes a base plate 11 and "lateral walls 12 and 13 one edge of each of which is mounlted adjacent theibaselate 12 and the other edges of which are contiguous.

One or both of the lateral walls 12 and'13 the drawing the wall 13 is pivotally mounted on pins-14 supported in the end plates 15 which constitute the end closures-for. the.- .chamber 10.- A lever 16 is ada ted to operate the movable member 1;").

1 5 a nd the'fixed wall12 may befsecure'd to the base plate in any convenient manner, as bymeans'of bolts 17.

As'sliown in 0 'end plates a The baseplate 11- is preferably rovidedwith a groove adjacent themovab e mem 1 her-13 which contains a suitable packing material '18 in order to provide a fluid ti ht joint between the plate and the mova 16 wall. The edge of. the wall adjacent. the

ily moved on its axis or hinge.

The adjacent edgesof the'walls 18 areequipped with a plurality of indentations which, when the wall 13 is in closed position,

constitute discharge ports for the spraying discharge openings are prefer spray. The ly in the packing 18' is preferably curved, as illustrated, in order that the wall may be read form of contiguous half circles 19 which form circular openings when the movable member 13 is closed.

In the particular application of the invention illustrated in Figures 1 and 2. a barrel paintirig or coating machine is shown which includes a suitable supporting frame 20 provided with a skid or runway 21 and rotating means 22 b which the barrel 23 may be rotated during the painting or coating operation. The liquid applying device 10 is mounted adjacent the position of the barrel 23 so that it may be employed in applying the paint or other material usedto the surface of the barrel. A plurality of brushes 24 are provided which may well be arranged and adapted to automatically conform to the contour of the barrel, as shown and described in my co-pending application Serial #426,215, filedNovember 24,

l920,,now U. S. Patent No.-1,449,660, of which the present application is a division. The brushing mechanism thus illustrated embodies a plurality of brushes 24 mounted, preferably in staggered relation, onthe ends of weighted levers 25 pivotally supported on a pin or rod 26.

The painting or coating operation is carried on over a paint or liquid receptacle 27 which is preferably formed with an inclined bottom 28. A pump 29 is provided having an inlet or suction line 30 which communis cates with the liquid in the paint pan and a discharge line 31 leading to the sprayer 10. Ifdesired, the pipe 31 may communicate with the spraying chamber through one or more branch lines, as 31 and 31". As shown in the drawing the pump is adapted to be operated by means of a motor 32, power being transmitted from the motor to the pum shaft b means of a sprocket chain 33 whic may a o, if desired, be used to transmit power to a hoisting. mechanism indicated generallyat 34 which may be employed at the conclusion of the painting operation to raise the barrel to an upright position for discharging same, as is more clearly set forth in the co-pending application to which reference has been made. The pan 27 is provided with a screen 35 so arranged that it will catch the bulk of any foreign matter re quired. If desire nioved from the barrels by the brushes 24 and falling into'the pan, permitting only the clean liquid to enter that portion of the an in which the suction line 30 is positioned In operation the pump is preferably kept running so as to keep the paint in circulation. the excess paint removed from the barrel dripping into the paint pan and being picked up by the pump and used again. In this .way a mimmum guantity of paint is rethe ump may be equipped with a branch discharge line 36 by which the contents of the pan may be pumped out when desired and it may also sition. It is apparent that when the movable member or lip 13 is completely closed that the fluid will be ejected with the greatest amount of force from thechamber 10 through the discharge ports 19 and that as the member 13 is opened the flow of the liquid will be more sluggish. During the periods when. the barrels are being discharged from and admitted to the painting machine and when consequently it is not desired to apply the paint, the lip 13 is left open. The paint, however, is preferably continuously circulated by the pump and flows over the edges of the lateral walls 12 and 13 keeping the indentations 19 free from deposits. In cases where the liquid used has a tendency to dry or become solid on exposure to the atmosphere the continual flow of the liquid prevents solidification and in particular prevents the .formation of films of solid matter in the discharge gports 19.

It is apparent that the movable wall of the chamber constitutes in effect a gate or valve which controls the discharge of fluid from the spraying-mechanism, and in particular regulates the force with which the fluid ,is discharged so that the fluid may at times be jetted a ainst the surface of "the object to be coate ly overflow from the chamber. In one form of the invention the indentations on the contiguous edges of the walls of the chamber may be omitted, in which case the fluid will be discharged with greatest force when the movable closure member '-approaches the closed position, the liquid being then ejected in the form of a'film or spray, and the flow of liquid entirely stopped when the movable membenreaches the full closed position.

Apparatus of preferred form and construction has been illustrated and described for the purpose of showing a way in which this invention may be used but the inventive thought uponwhich the application is based is broader than the illustrative embodiment thereof and I, therefore, intend no limitations other than those imposed by'the appended claims.

What I claim is:

1. In spraying apparatus, a reservoir comprisin a fixed wall having indentations in one 0 its edges, a complementary movabld and at other times allowed to merewall havin corresponding indentations in one of its e ges and mounted to be moved toward and away from the fixed'wall to cause the registered indentations to form discharge orifices when the edges are in cooperative engagement, and to provide a large open passage when the edges are disengaged, means for actuating the movable wall into open position to permit the liquid to pass freely through said reservoir or into closed position to efiect the discharge thereof through the orifices in jets or "spray-like form, and means for forcibly supplying liquid to the reservoir.

2. In spraying apparatus, a reservoir comprisin a fixed wall having indentations in one 0 its edges, a complementary movable one of its e ges and pivotally mounted to be moved toward and away from the fixed wall to cause the registered indentations to form discharge orifices'when the edges are in cooperative engagement and to provide a large open passage'when the edges are dis engage manually operated means for actuating the movable wallintoopen positionvto permit the liquid to pass freely throu b said reservoir or into closed position to e ect the discharge thereto through the orifices, and means for forcibly supplying liquid to the reservoir.

In witness whereof I have hereunto set my hand this. 4th day of January, 1923.

. FRED o. FANTZ. 

